material derived from or composed of matter; "the material universe"
unsubstantial,
insubstantial,
unreal lacking material form or substance; unreal; "as insubstantial as a dream"; "an insubstantial mirage on the horizon"
immaterial -
(often followed by `to') lacking importance; not mattering one way or the other; "whether you choose to do it or not is a matter that is quite immaterial (or indifferent)"; "what others think is altogether indifferent to him"
corporeal,
material having material or physical form or substance; "that which is created is of necessity corporeal and visible and tangible" - Benjamin Jowett
immaterial -
not pertinent to the matter under consideration; "an issue extraneous to the debate"; "the price was immaterial"; "mentioned several impertinent facts before finally coming to the point"